| 摘要 |
<p>The stand has eight rectangular pipes with 140 centimeter length and a 120 to 100 millimeters (mm) diameter. A guide is put on a top of the 120 mm latitudinal flange, and bent downwwards 5 mm, so that an angular bearing surface is developed. Left and right supports are connected with two cross beams, between which a 100 centimeter long rectangular pipe with a diameter from 100 mm to 80 mm is used.</p> |
